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Poster:
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xtifr |
Date:
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September 10, 2007 04:15:30am |
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Forum:
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etree
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Subject:
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Re: FLAC compression rates |
I think if you actually experiment, you'll find that maximum compression with flac is only a little smaller than the default median compression level. Sounds like the program you're using has misleading menus. Unless someone has made some amazing breakthroughs in mathematics recently, compression to 10% is the kind of number you only get out of lossy formats.
Most studies suggest (and my own experience tends to confirm) that maximum flac compression takes a
lot longer to compress or decompress, but only offers tiny improvements in file size. For this reason, I usually stick with the median, default compression. The difference in file transfer time isn't enough to justify the overheads of greater compression, in my opinion. People who pay by-the-minute for net access may disagree, though.
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Poster:
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 greenone |
Date:
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September 10, 2007 06:58:07am |
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Forum:
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etree
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Subject:
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Re: FLAC compression rates |
xtifr's right that level 8 compression on FLAC will yield only slightly smaller files than level 6, for example. I always go to 8 - why not go for the smallest file size possible? Just let the sucker run and be done with it... I think I have yet to make a recording where there was any pressing need to get my compression done that much faster. :)
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Poster:
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xtifr |
Date:
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September 10, 2007 01:47:08pm |
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Forum:
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etree
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Subject:
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Re: FLAC compression rates |
Fair point, and if it were just the compression, I'd totally agree, but the decompression is slower too, and I decompress flacs
way more often than I compress them
or upload them. Obviously, other people's usage patterns may affect their priorities differently. :)
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Poster:
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scott-tally |
Date:
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September 10, 2007 03:21:43pm |
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Forum:
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etree
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Subject:
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Re: FLAC compression rates |
good discussson. I was guessing at the 10%, have only tried a couple ticks below median. So, after I compress and upload, is that the level it stays at? Or does it get redone at archives? Does it make a difference to the user downloading a flac to have a smaller download but slower rebuild?
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Poster:
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greenone |
Date:
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September 11, 2007 06:05:13am |
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Forum:
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etree
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Subject:
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Re: FLAC compression rates |
Point taken! :) I do very little trading, very little burning, and LOTS of uploading and archiving.
Scott - the LMA doesn't do anything to the source files after you upload them - that would actually change the checksum if they did that, which kinda renders the whole thing useless. In truth, I don't think a downloader has any way of figuring out which level of compression you used unless you specify it in your text file - use whatever's most convenient for you!
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